Exact Matching Concepts from Other Schemes

Sources

found: Pol. Parties and Civic Action Grps, 1981,p. 487, etc. (Young Socialist Alliance (YSA); political organization founded 1960 in N.Y.C. by James P. Cannon, Trotskyite who had been expelled from Soc. Pty. of America; founded to promote Marxian principles and socialist activity among Am. youth)